Yesenia´s Prank 

Once year ago, I played a prank on my sister that ended badly.

well my sister is afraid of the dark so one day she asked me if I could accompany her to the bathroom because she had to go downstairs the stairs were outside the house and it was dark so I answered "yes don´t worry"

when she gets in the bath, I thinked "why not played her a joke?"

So, I hid under the stairs in the darkest area.

when my sister came out, I heard her screaming looking for me, but I did not answer, she sounded very annoyed because she thought her, I had left her so.

She started to go upstairs almost running so I came out of my hide and I climbed up behind her to clarify her that I had not left but it was a bad idea because my sister got too scared when she heard me running after her and started screaming while cried.

I felt terrible after that I never thought something like this could happen,  sometimes I think I was lucky that her did not react worse because that she did not was able to throw herself off the stair out of fearfully or push me downstairs.

I learned that I must be careful when it comes to someone else´s fear because you never know how big it is.